> core tenant

tenet not tenant

> You don't know what will be best for most users until you try something.

That's because you don't understand your users. If you did, you wouldn't need to spy on them.

> you rarely find the global maximum on the first try

One never finds the "global maximum" with telemetry, at best a local sort-of maximum. To find what's best, you need understanding, which you never get from telemetry. Telemetry tells you what was done, not why or what was in the people's mind when it was done.

The past is not a good predictor of future performance.

I expect the smartphone market to switch to a sales model where devices are somewhat more expensive, but more durable and to some extent more serviceable than in the past, so many will buy refurbished phones instead of new ones. I can see some similarities with the used car market, or hi-fi audio receivers, for example.

Here's a replacement battery for last year's S25 Ultra: https://www.mobilesentrix.ca/replacement-battery-compatible-.... Retails for 14 CAD or approx 9 EUR (11 EUR with a 20% VAT). So yes, 79 EUR would be extremely expensive.

You are making a grave mistaking here of thinking by analogy. Just because parents said something similar about something else long time ago has no bearing on the current situation.

To expect is different from it being impossible.

Can't argue with that.

But in defence of JavaScript -- since it enjoys routine bashing, not always undeserved -- it now has true runtime-enforced private members (the syntax is prefixing the name with `#`, strictly as part of an ES6 class declaration), but yeah -- this doesn't invalidate the statement "kind of got there 32 years after Ada, stumbling over itself".

JavaScript has supported real data hiding since the beginning using closures. You define your object in a function. The function's local variables act as the private members of the object. They are accessible to all the methods but completely inaccessible to consumers of the object.

I completely forgot about closures. Frankly, they're still my go-to method for encapsulation, in part because the Java-isation of JavaScript done with the private class members and the onslaught of the "Alan Kay's ideas meet Simula" OOP flavour, is relatively new and I am still unsure whether it's a critical thing to have in JavaScript.

> For every Mississippi there is an analogous place in Europe, and for every Liechtenstein there is an analogous place in the US

Neither are true.

WhatsApp is a much nicer platform for business (and messaging in general), and the rest of the world would find the American idea of "professional" rather laughable.

> I thought those had died long ago.

No, it's always been true. It's just that at some point people got bored and tired of pointing it out.